docs: def nodes_info(self, nodes=None):
          """
          The cluster :ref:`nodes info <es-guide-reference-api-admin-cluster-state>` API allows to retrieve one or more (or all) of
          the cluster nodes information.
          """
          parts = ["_cluster", "nodes"]
          if nodes:
              parts.append(",".join(nodes))
          path = make_path(*parts)
          return self.conn._send_request('GET', path)